dmitryy74 Hello,
Let me explain again about this :
ERROR: Only nop and sig tag can be recevied before authentication.
Just copied from my previous reply 😉
Before auth only nop and sig means none operations will allowed before authorization by their server.
As you may know, newest Xiaomi qualcomm device implement Firehose with custom Auth, means, this kind of device can not be read(Identify, backup), erase, or write(flash) before authorize by their server.
Even for this one : > dmitryy74 identify? This is operation only for gathering information about phone.
After auth, you can do any operation like above I mention(read,erase,write)